bienei_V6.4

2维FDTD下的对称阵子电场分布，点源位于中心，采用PML边界条件(2-D FDTD electric field under the symmetric distribution of stream)

一个二维的fdtdc++编写的程序，较完整，带有pml边界条件。感兴趣的可以下载看看。(A two-dimensional fdtdc++ preparation procedures, more complete, with pml boundary conditions. Interested can download to see.)

说明：  主要是用于提取超声导波的时域特征，例如偏度参数、峰度系数、形状系数、离散系数等等(Time Domain Characteristics for Extracting Ultrasound Guided Waves)

改进的蚂蚁算法，即带精英策略的蚂蚁算法，求解TSP问题，对深入理解蚂蚁算法的优化原理很有帮助，通过测试。(Improved ant algorithm, ant algorithm with elitist strategy, to solve TSP problem, the ant-depth understanding of the principle of optimization is helpful, pass the test.)

说明：  日本科学家奥村通过对城市进行大量无线电波传播损耗的测量，得出了一系列经验曲线用于无线蜂窝网络的规划设计。在这些经验曲线的基础上，推出了简化的Hata模型。(Olympic Village by Japanese scientists a great deal of radio waves in urban propagation loss measurement, the experience curve obtained for a series of planning and design of wireless cellular networks. In the curves on the basis of these experiences, the introduction of a simplified Hata model.)

用matlab编写的GUI射击小游戏，靶子图片为pp，可直接更换(Prepared using matlab GUI shooting game, the target image is pp, can be a direct replacement)

truetime 的例子（I),介绍联网，使用truetime2.0(truetime example (I), describes networking, use truetime2.0)

matlab圆度误差的评定算法，最小二乘法，最小包容区域法，最大外接圆法，最小内接圆法(roundness error matlab assessment algorithm, the least square method, the minimum tolerance zone method, the largest circumcircle method, the smallest within the inscribed circle method)

Particle swarm optimization has been used to solve many optimization problems since it was proposed by Kennedy and Eberhart in 1995 [4]. After that, they published one book [9] and several papers on this topic [5][7][13][15], one of which did a study on its performance using four nonlinear functions adopted as a benchmark by many researchers in this area. In PSO, each particle moves in the search space with a velocity according to its own previous best solution and its group’s previous best solution. The dimension of the search space can be any positive integer.

说明：  vlsl 数字信号处理系统设计，非常好的书适合搞算法的人学习哦(vlsl digital signal processing system design, very good book for people who engage in learning algorithms Oh)